Recognition of cognate transfer RNA by the 30S ribosomal subunit.
Article Details
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Ogle JM, Brodersen DE, Clemons WM Jr, Tarry MJ, Carter AP, Ramakrishnan V
Recognition of cognate transfer RNA by the 30S ribosomal subunit.
Science. 2001 May 4;292(5518):897-902.
- PubMed ID
- 11340196 [ View in PubMed]
- Abstract
Crystal structures of the 30S ribosomal subunit in complex with messenger RNA and cognate transfer RNA in the A site, both in the presence and absence of the antibiotic paromomycin, have been solved at between 3.1 and 3.3 angstroms resolution. Cognate transfer RNA (tRNA) binding induces global domain movements of the 30S subunit and changes in the conformation of the universally conserved and essential bases A1492, A1493, and G530 of 16S RNA. These bases interact intimately with the minor groove of the first two base pairs between the codon and anticodon, thus sensing Watson-Crick base-pairing geometry and discriminating against near-cognate tRNA. The third, or "wobble," position of the codon is free to accommodate certain noncanonical base pairs. By partially inducing these structural changes, paromomycin facilitates binding of near-cognate tRNAs.
DrugBank Data that Cites this Article
- Polypeptides
Name UniProt ID 30S ribosomal protein S10 Q5SHN7 Details 30S ribosomal protein S12 Q5SHN3 Details 30S ribosomal protein S11 P80376 Details 30S ribosomal protein S13 P80377 Details 30S ribosomal protein S15 Q5SJ76 Details 30S ribosomal protein S16 Q5SJH3 Details 30S ribosomal protein S18 Q5SLQ0 Details 30S ribosomal protein S19 Q5SHP2 Details 30S ribosomal protein S20 P80380 Details 30S ribosomal protein S4 P80373 Details 30S ribosomal protein S5 Q5SHQ5 Details 30S ribosomal protein S6 Q5SLP8 Details 30S ribosomal protein S7 P17291 Details 30S ribosomal protein S9 P80374 Details 30S ribosomal protein Thx Q5SIH3 Details 30S ribosomal protein S2 P80371 Details 30S ribosomal protein S3 P80372 Details 30S ribosomal protein S14 type Z P0DOY6 Details 30S ribosomal protein S17 P0DOY7 Details 30S ribosomal protein S8 P0DOY9 Details